Abstract Thermal camouflage, which is used to conceal objects in the infrared vision for confrontation with detection civilian or military applications, has garnered increasing attraction and interest recently. Compared conductive thermal that tune heat conduction achieve equivalent temperature fields, radiative based on emissivity engineering, more promising shows much superiority pursuit of dynamic camouflage technology when resorting stimuli-responsive materials. In this paper, we...

Near-field radiative heat transfer (NFRHT) can exceed the blackbody radiation limit owing to coupled evanescent waves, implying a significant potential for energy conversion and thermal management. Coupled surface plasmon polaritons (SPPs) hyperbolic phonon (HPPs) with small ohmic losses enable long propagation wavelength that is essential in NFRHT. However, so far, there still lacks knowledge about experimental investigation of coupling SPPs HPPs terms In this study, NFRHT between...

Thanks to the conductive thermal metamaterials, novel functionalities like cloak, camouflage and illusion have been achieved, but metamaterials can only control in-plane heat conduction. The radiative out-of-plane emission, which are more promising applicable not studied as comprehensively counterparts. In this paper, we theoretically investigate surface emissivity of metal/insulator/metal (MIM, i.e., Au/Ge/Au here) microstructures, by rigorous coupled-wave algorithm, utilize excitation...

We numerically investigate the near-field radiative heat transfer (NFRHT) between graphene and anisotropic magneto-dielectric hyperbolic metamaterials (AMDHMs) according to fluctuational dissipation theorem. In this configuration, multiple modes, including $p$- $s$-polarized surface phonon polaritons (SPhPs) modes supported by AMDHMs as well high-frequency antisymmetric for $p$ polarization, can be observed. These extraordinary propagating enable total NFRHT flux exceed that SiC nanowires...

Active control of radiative heat transfer still remains open due to its exciting application potential. In view this, we present a theoretical demonstration dynamically tunable near-field (NFRHT) between two multilayer hyperbolic metamaterials (consisting alternating layers magneto-optical (MO) material and dielectric) using an external magnetic field. We show that magnetization-induced modes play significant role in allow highly flux. Moreover, the hybridization intrinsic significantly...

A hybrid grating-based Fabry–Perot structure is proposed to investigate light manipulation in the near-infrared wavelength region. It found that electromagnetic energy can be easily trapped different parts of system at polarization states. For TM polarization, numerical results show two remarkable narrowband absorptance peaks appear owing excitation critical coupling with guided mode resonance and resonance. While for TE only one peak generated because excited. The spectral selectivity tuned...

We numerically investigate a novel and competitive graphene-based Fabry-Perot (GFP) structure to enhance the light-matter interaction of graphene at telecommunication wavelengths, highly efficient narrow-band absorption is achieved. The absorptance GFP can reach near-unity by optimizing position in dielectric layer, localized wavelengths be improved from 2.3% 83.2%, which attributed strong field confinement resonance layer. remarkable enhancement acquired for both TM TE polarizations. Such...

Narrowband mid-infrared emitters, quantified by the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>Q</mml:mi> </mml:math> -factor, have garnered a lot of attention due to their emerging applications from chemical and biosensing efficient thermal utilization. Previous studies reported high -factor emitters within several selected wavelengths, still lacking large database emitter structures with very -factors. In this Letter, we utilized Monte Carlo Tree...

A thermophotovoltaic system that converts thermal energy into electricity has considerable potential for applications in utilization fields. However, intensive emission a wide spectral and angular range remains challenge improving efficiency. This study proposes the use of 2D trilayer grating with tungsten/silica/tungsten (W/SiO2/W) structure on tungsten substrate as emitter. The finite-difference time-domain method is employed to simulate radiative properties proposed structure. broadband...

The light absorption of a hybrid novel MoS2-based nanostructure is theoretically investigated by using the finite-difference time-domain (FDTD) simulations, and high-efficiency broadband achieved in visible wavelength region. enhancement localized electromagnetic field owing to that surface plasmon resonances (LSPRs) supported Au nanoparticles (NPs) can be used enhance MoS2, monolayer MoS2 are remarkably enhanced up from about 18.3% 4.6% 55.2% 84.8% at resonant wavelengths 467.7 nm 557.8 nm,...

We numerically investigate the near-field radiative heat transfer (NFRHT) between a graphene/SiC core-shell (GSCS) nanoparticle and hexagonal boron nitride (hBN) plate. By applying compressive strain to hBN plate, its hyperbolic modes can be tuned. Consequently, phonon polaritons (HPPs) of high-frequency localized surface resonance (LSR) GSCS couple decouple, thus allowing for active control NFRHT. Furthermore, we predict that, combining with effect chemical potential graphene shell on...

We theoretically propose a graphene-based Tamm plasmon polaritons (GTPP) structure to enhance the absorption of graphene in near-infrared range. An ultra-narrow-band and highly efficient can be realized based on (TPP) critical coupling with guide resonances. Simulated results indicate that dramatic enhancement help GTPP improved from 2.3% near 75%, reach 99% for both TM TE polarizations. Furthermore, further study reveals peak adjusted by geometry incident angle, proposed possesses good...

As an allotrope of phosphorus and a promising 2D semiconductor, black (BP) exhibits in-plane anisotropy along its armchair zigzag crystal directions, allowing for efficient regulation near-field radiative heat transfer (NFRHT). In this work, we investigate the NFRHT between two multilayer BP/hBN heterostructures theoretically demonstrate that thermal can be realized by tuning electron density rotation angle BP. Results show larger leads to coupling anisotropic surface plasmon polaritons...